Department of Chemistry and Macromolecular Science and Engineering Program, The University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109-1055, USA.
Inorg Chem. 2010 Jun 7;49(11):5271-5. doi: 10.1021/ic100378p.
Reacting biphenyl-3,4',5-tricarboxylic acid (H(3)BHTC) with the appropriate metal salt yields the microporous coordination polymers (MCPs) Mn(3)(BHTC)(2) (1), Mg(3)(BHTC)(2) (2), and Co(3)(BHTC)(2) (3) containing hourglass metal clusters. The addition of Cu to reactions with Co(II), Fe(III), or Mn(II) leads to the formation of heterobimetallic UMCM-150 isostructural analogues Co(1)Cu(2)(BHTC)(2) (4), Fe(1)Cu(2)(BHTC)(2) (5), and Mn(1)Cu(2)(BHTC)(2) (6) containing both paddlewheel and trinuclear metal clusters. X-ray diffraction analysis of the crystals of the heterobimetallic MCPs suggests that Cu on the trinuclear site of UMCM-150 was replaced by the other metal, whereas Cu in paddlewheel sites remains unchanged. N(2) sorption isotherms were measured for the mixed-metal UMCM-150 analogues, and it was confirmed that there is no structural collapse after the metal replacement.
反应联苯-3,4',5-三羧酸（H(3)BHTC）与适当的金属盐生成微孔配位聚合物（MCPs）Mn(3)(BHTC)(2)（1）、Mg(3)(BHTC)(2)（2）和 Co(3)(BHTC)(2)（3），其中含有沙漏型金属簇。将 Cu 添加到与 Co(II)、Fe(III)或 Mn(II)的反应中，导致形成异双核 UMCM-150 同构类似物 Co(1)Cu(2)(BHTC)(2)（4）、Fe(1)Cu(2)(BHTC)(2)（5）和 Mn(1)Cu(2)(BHTC)(2)（6），其中包含桨轮和三核金属簇。异双核 MCPs 的晶体的 X 射线衍射分析表明，UMCM-150 三核位点上的 Cu 被其他金属取代，而桨轮位点上的 Cu 保持不变。混合金属 UMCM-150 类似物的 N(2)吸附等温线进行了测量，证实金属取代后没有结构塌陷。
